Pous

1. An ancient Greek unit of length approximately equivalent to 308.2 millimeters.

2. An ancient Greek unit of area approximately equivalent to 0.095 square meters.

References in periodicals archive ?

While the poly(caprolactone-urethane) (PCLU), poly (ethylene adipate-urethane) (PEAU) and poly (butylene adipate-urethane) (PBAU) show little change, the tensile properties of the POUs deteriorate.

Table 6 compares the biodegradability evaluated by the compost soil burial tests between the POUs and PCLU.

Three functional groups, urethane, urea, and ester, exist in the POUs synthesized in the present study.

In other words, adding the PCD into the POD enhances heat resistance of the POUs.

The molecular weight and the chemical structure of its polyoxalate part play a dominant role in determining properties of whole POUs.

The compost soil burial test verified that these POUs were biodegradable.

Comparison between PTMO-2U and PHMOU reveals that the former tends to provide a rigid POU while the latter a flexible one.

In other words, using a longer chain diol makes the resultant POU less hydrolyzable.

The above discussion helps us understand why the POU exhibits excellent biodegradability.

Comparison Between the POU and the Poly(Carbonate-Urethane) (PCU).

An amorphous POU, a segmented PEU, was synthesized reacting a POD, an oligomer prepared by condensation polymerization including an ester interchange reaction using DMO and 1, 3-PDL or 1, 6-HDL, with MDI and a PDA chain extender, where POD/PDA/MDI = 1/1/2 in mole ratio.